3-phase power instead of voltage for P1 smart meter

Use this forum to discuss possible implementation of a new feature before opening a ticket.
A developer shall edit the topic title with "[xxx]" where xxx is the id of the accompanying tracker id.
Duplicate posts about the same id. +1 posts are not allowed.
Post Reply
McWil
Posts: 2
Joined: Sunday 29 July 2018 22:07
Target OS: Raspberry Pi
Domoticz version:
Contact:

3-phase power instead of voltage for P1 smart meter

Post by McWil » Tuesday 31 July 2018 17:07

Domoticz nicely detects new smart meters using DSMR 4.x protocol and provides 5 devices, power, gas and 3x voltage. It would be much more useful to register (and graph) the power usage of the three phases (that are also in the P1 telegram) rather than the three voltages. Should be relatively easy to change when parsing the P1 telegram...?

Martijn

pwhooftman
Posts: 160
Joined: Monday 11 November 2013 19:04
Target OS: Raspberry Pi
Domoticz version:
Contact:

Re: 3-phase power instead of voltage for P1 smart meter

Post by pwhooftman » Wednesday 01 August 2018 2:22

power usage isn't measureable per phase in a 3 phase system. The power usage is formed by the 3 phases combined, because the sine waves of each phase is 120 degrees shifted from the other phases.
Domoticz v 1.16xx
1X RFXtrx433 USB 433.92MHz Transceiver Firmware version: 71
1X Synology Nas DS412+ DSM 4.3 (2Gb RAM mod)

RichieB
Posts: 1
Joined: Sunday 21 October 2018 1:13
Target OS: Raspberry Pi
Domoticz version:
Contact:

Re: 3-phase power instead of voltage for P1 smart meter

Post by RichieB » Sunday 21 October 2018 1:22

My E350 smart meter does report the power per phase via OBIS references 21.7.0, 41.7.0 and 61.7.0, see also this reference. As McWil says, it would be much more useful to display the power per phase instead of the voltage. How can we achieve this?

Edit: it looks like the E350 P1 OBIS references are hardcoded. :cry:

Code: Select all

1-3:0.2.8(50)
0-0:1.0.0(181021003949S)
0-0:96.1.1(xxxx)
1-0:1.8.1(002884.003*kWh)
1-0:1.8.2(000964.457*kWh)
1-0:2.8.1(000000.000*kWh)
1-0:2.8.2(000000.000*kWh)
0-0:96.14.0(0001)
1-0:1.7.0(00.871*kW) 
1-0:2.7.0(00.000*kW)
0-0:96.7.21(00013)
0-0:96.7.9(00001)
1-0:99.97.0(1)(0-0:96.7.19)(180704181350S)(0584036030*s)
1-0:32.32.0(00000)
1-0:52.32.0(00001)
1-0:72.32.0(00001)
1-0:32.36.0(00000)
1-0:52.36.0(00000)
1-0:72.36.0(00003)
0-0:96.13.0()
1-0:32.7.0(234.0*V)
1-0:52.7.0(233.0*V)
1-0:72.7.0(234.0*V)
1-0:31.7.0(000*A)
1-0:51.7.0(002*A)
1-0:71.7.0(002*A)
1-0:21.7.0(00.018*kW)
1-0:41.7.0(00.440*kW)
1-0:61.7.0(00.412*kW)
1-0:22.7.0(00.000*kW)
1-0:42.7.0(00.000*kW)
1-0:62.7.0(00.000*kW)
0-1:24.1.0(003)
0-1:96.1.0(xxx)
0-1:24.2.1(181021003505S)(02546.060*m3)
!1C83
~/XMX5LGBBLA4415427303

Post Reply

Who is online

Users browsing this forum: No registered users and 4 guests